Resolve "Add education milestones to the roadmap"

Closes #104 (closed)

_roadmap/software/2021-02-26-tasks.md

@@ -5,4 +5,4 @@ service: software
 ---
 
 ## Publish training program for the first half of 2021 
-The education and training work package publishes the offered training events for the first half of 2021 on https://software.hifis.net/events.
+The education and training work package publishes the offered training events for the first half of 2021 on <https://software.hifis.net/events>.